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Japan's airline industry has more to lose than that of any other nation as delays in fixing the Boeing Co. (NYSE: BA) 787 Dreamliner continue. All Nippon Airways (ANA) in particular has relied on the plane.

Now, the U.S. manufacturer plans a series of actions to reassure Japanese customers. However, based on a review of these plans, they hardly seem likely to work, particularly based on the skepticism of authorities.

According to The New York Times:

Japanese investigators have maintained that there is still not enough evidence to show that the batteries themselves are the cause of fires, and that a shock could have caused them to overheat. That could complicate Boeing's efforts to get regulators around the world to approve their fixes, because they focus only on containing any problems that might arise in the batteries.

Boeing shares are thus far inactive in premarket trading, but closed at $77.36 yesterday. The 52-week range is $66.82 to $78.02.